/Engine/Source/Editor/UnrealEd/Classes/Settings/LevelEditorPlaySettings.h
[FMargin](API\Runtime\SlateCore\Layout\FMargin) FlipCustomUnsafeZones ( [TArray](API\Runtime\Core\Containers\TArray)< FVector2D > & CustomSafeZoneStarts, [TArray](API\Runtime\Core\Containers\TArray)< FVector2D > & CustomSafeZoneDimensions, [FString](API\Runtime\Core\Containers\FString) & DeviceType, FVector2D PreviewSize )